First, the price of led bulb lamp
The price may be that the bulb lamp is a little expensive. LED bulb lamps are more energy-saving and environmentally friendly than energy-saving lamps, and do not contain harmful substances. It is a green lighting product with long service life and obvious energy saving effect.
At present, the market price of led lamps changes greatly, and the quality is mixed. For example, 3w, the cheap 4-5 yuan, the expensive 20 yuan. Philips, Foshan Lighting, etc. There are better brands that are more expensive, while the mid-range Guangzhou Hailin and Li Lang have good cost performance and are suitable for home use.
Second, the introduction of led bulb lights
As one of the substitutes of traditional incandescent lamp, led bulb lamp is only a scenery in the window at present, and it will take a long time to become a daily necessities of consumers' families. A big factor is the price of led bulbs. At present, the retail price of led bulb lamps equivalent to 40W or 60 ordinary bulbs is $20 and $40. Although led bulb lamps have incomparable characteristics such as dimming and long service life, some led bulb lamps can be used for 25,000 to 50,000 hours under the condition of 3 or 4 hours. If used properly and economically, it may take longer than users. But led bulbs are still very expensive in the eyes of consumers. Are they worth the money?
By disassembling several standard A 19 led bulbs on the market, the real value of led bulbs is discussed. 800 lumen 12.5W led bulb lamp, equivalent to 60W traditional bulb; Other models are different brands of traditional lamps equivalent to 40W.
Dismantling these led bulb lamps, we can find that each led bulb lamp adopts a special closed design, which is different from the heat-shrinkable film packaging of tungsten wire and CFL lamps. The cold packaging of these led bulbs increases the overall cost. Moreover, with the appearance as a selling point, the momentum of maintaining high prices of led bulb lamps will continue. Led bulb lamp uses ceramic neck and inner wing, and has glass rod seat, which is more expensive than products made of plastic and metal.
Secondly, the neck of each led bulb lamp is equipped with a small printed circuit board, which greatly improves the reliability coefficient of led. However, how long can the service life of electrolytic capacitors be under high heat working conditions? The biggest difference between these led bulb lights is that the led driver ic is different. There is an led bulb lamp with four ICs, 40 resistors and 16 capacitors, plus a transformer and several diodes, which can be used to dim the led bulb lamp.
Third, the light efficiency of led is equivalent to 40WCFL. In the case of 50lm/W~60lm/W, the light efficiency of led bulb lamp is equivalent to 40WCFL, while CFL is usually 560lm/ 10W. A few dollars of CFL bulbs can last for 8 years. 1 led bulb saves energy equivalent to buying 2 or 3 CFL bulbs in the next 25 years. Fortunately, CFL bulbs are packed in groups of 2 or 4. However, for CFL, we have avoided mercury pollution at the expense of energy consumption. Led bulb lamp has double attraction: first, it can be lit immediately without preheating time; Secondly, it does not contain mercury, and the toxicity of rare earth elements used in led is very low, and the amount of rare earth elements is also very small.
As time goes on, the price of led bulb lamp will gradually decrease, and it will become a cleaner and safer substitute for CFL, and it can be expected to have a longer service life. In addition, we can also expect various new functions of led bulb lights; In these respects, the potential of led bulb lamps in indoor lighting can still continue to grow.
Third, the advantages of LED bulb lamp
1, saving energy. The energy consumption of white LED is only110 of incandescent lamp and1/4 of energy-saving lamp.
2, long service life, the service life can reach more than 65438+ 10,000 hours, which can be described as "once and for all" for ordinary household lighting.
It can work at high speed. If the filament of energy-saving lamp is frequently switched on and off, it will turn black and break quickly.
4. Solid-state packaging belongs to the type of cold light source. Therefore, transportation and installation are very convenient, and it can be installed in any miniature and closed equipment without fear of vibration.
5.LED technology is changing with each passing day, the luminous efficiency is making an amazing breakthrough, and the price is also decreasing. The era of white LED entering the home is rapidly coming.
6, environmental protection, no harmful substances containing mercury. The assembly parts of LED bulbs can be easily disassembled and assembled, and can be recycled by others without recycling by manufacturers.
7. Light distribution technology expands LED point light source into surface light source, increases luminous surface, eliminates glare, sublimates visual effect and eliminates visual fatigue;
8. Integrated design of lens and lampshade. The lens has focusing and protection functions at the same time, which avoids the repeated waste of light and makes the product more concise and beautiful;
9. High-power LED planar cluster package, integrated design of radiator and lamp holder. It fully guarantees the heat dissipation requirements and service life of LED, and fundamentally meets the arbitrary design of the structure and shape of LED lamps, which has the distinctive characteristics of LED lamps;
10, saving energy significantly. Using ultra-bright high-power LED light source and high-efficiency power supply, it saves more than 80% electricity compared with traditional incandescent lamps, and the brightness is 10 times that of incandescent lamps with the same power;
Tips for choosing LED bulbs;
Look at the LED bulb lamp chip:
Domestic chips, Taiwan Province chips, imported chips, there are mainly three kinds of chips. Among these chips, Taiwan Province chip has the highest cost performance, which is generally chosen by high-end customers. Imported chips are rarely used and expensive, while domestic chips are of poor quality and low price.
See LED bulb lamp package:
LED packaging is an important link, including resin packaging and silica gel packaging. The comparison point is the heat dissipation performance. Relatively speaking, silica gel packaging has good heat dissipation and relatively expensive price.
Look at the solder joint of LED bulb lamp:
The solder joints of high-quality LED bulb lamps should be smooth, and the amount of solder should be appropriate and uniform. The solder joints of inferior LED bulb lamps are rough and have tin tips.
Look at the brightness of LED bulb lamp:
High-brightness LED bulb lamps need more complex materials and stricter production process requirements, so the cost is more expensive. Therefore, if only LED bulbs with general brightness are needed, consumers should choose clearly.
Look at the LED bulb lamp label:
From the label, we can also see whether a manufacturer is formal, and the products produced by regular manufacturers will be labeled on the products or packaging, rather than printed and affixed.
See LED bulb lamp accessories:
Nearby refers to the instruction manual and instruction manual of general products, and LED bulb lamps should also be equipped with light strip connectors or card holders.
Led bulb lamp has many advantages, including many specific aspects, so the products available in different places need to be analyzed by consumers themselves in combination with specific actual conditions. Of course, in addition, the consideration of price is also very important. For example, the information listed above is worth learning. For friends who are interested in buying led bulb lamp products, we can consider combining actual analysis and consulting professional opinions to avoid additional losses.